Charged-Lepton Mixing and Lepton Flavor Violation

Abstract

We present a model for calculating charged-lepton mixing matrices. These matrices are an essential ingredient for predicting lepton flavor-violating rates in the lepton number nonuniversal models recently proposed to explain anomalies in B-meson decays. The model is based on work on "constrained flavor breaking" by Appelquist, Bai and Piai relating the charged-lepton mass matrix, M_l, to those for the up and down-type quarks, M_{u,d}. We use our recent model of lepton nonuniversality to illustrate the magnitudes of flavor-violating B-decay rates that might be expected. Decays with mu tau final states generally have the highest rates by far.

13 pages, 1 figure. v3: predicted rates involving tau-leptons corrected for phase space; added textual comparison of our predictions with existing literature; other minor textual corrections. Matches journal version

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Cited by in corpus (22)

• Global analysis of $b\to s\ell \ell$ anomalies
• Scalar leptoquarks from GUT to accommodate the $B$-physics anomalies
• Lepton Flavor Non-Universality in B-meson Decays from a U(2) Flavor Model
• On the anomalies in the latest LHCb data
• Phenomenology of an $SU(2)\times SU(2)\times U(1)$ model with lepton-flavour non-universality
• Lepton Flavor Violation in Exclusive $b\to s$ Decays
• Linear flavour violation and anomalies in B physics
• Lepton Flavor Violation and Dilepton Tails at the LHC
• Prospects for Measurements with Strange Hadrons at LHCb
• Rare FCNC radiative leptonic $B_{s,d}\to \gamma l^{+}{l}^{-}$ decays in the Standard Model
• More Lepton Flavor Violating Observables for LHCb's Run 2
• Search for the lepton-flavour violating decays $B^{+}\to K^{+}{\mu }^{\pm }{e}^{\mp }$
• A gauged horizontal $SU(2)$ symmetry and $R_{K^{(\ast )}}$
• The strange side of LHCb
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• Search for lepton-flavor violating decays $D^0\to X^0{e}^{\pm }{\mu }^{\mp }$
• Search for the lepton-flavor-violating decay $B^0\to K^{\ast 0}{\mu }^{\pm }{e}^{\mp }$
• Search for rare or forbidden decays of the $D^0$ meson
• Completing constrained flavor violation: lepton masses, neutrinos and leptogenesis
• Rare radiative leptonic B-decays
• Lepton Flavor Violating $B\to K_2^{\ast }(1430){\mu }^{\pm }{\tau }^{\mp }$ Decays
• Form factors and differential distributions in rare radiative leptonic B-decays